opioid peptides

opioid peptides (ōˑ·pē·oid pepˑ·tīdz),

n.pl protein molecules found in the body that are responsible for endogenous analgesia and other functions. The three major classes are beta-endorphins, dynorphins, and enkephalins. See also endorphins and enkephalins.
References in periodicals archive ?
Opioid peptides can cause decrease in LH pulse frequency.
The research on the mechanism of acupuncture analgesia shows that acupuncture may cause nervous system to release opioid peptides with analgesic effect.
Our novel synthetic chemistry applied to naturally occurring enkephalin opioid peptides enable us to impart small-molecule, drug-like properties to peptides.
In CKD-associated pruritus, it is believed that there exists an imbalance between the endogenous opioid peptides that stimulate and inhibit pruritus pathways (Patel et al.
neurotransmitters) and their receptors, including opioid peptides (5) (e.
Identification of endogenous peptide ligands (6,7) that bind to their complementary receptors followed and they were termed, respectively, opioid peptides and opioid receptors.
Steroidal modulation of the regulatory neuropeptides: luteinizing hormone releasing hormone, neuropeptide Y and endogenous opioid peptides.
In joints, endogenous opioid peptides have been identified in human inflamed synovium, where they are thought to act on intraarticular opioid receptors to reduce joint pain (15).
Receptors for brain molecules known as opioid peptides help initiate the neurochemical reactions that underlie the positive effects produced by alcohol.
Furthermore, there is evidence of an interaction between endogenous opioid peptides and the dopaminergic mesocorticolimbic system in behavioral responses to stress.
The synchronous increase of neuropeptides and NK cells agrees with many studies in the area of neuroimmunomodulation research (16,17) and the finding that there is secretion of opioid peptides by leukocytes.
The opioid peptides are some of the most widely known neuropeptides.